A Phased Lag Index Study in Patients with Disorders of Consciousness

Abstract

In this paper is presented an analysis of the phase lag index (PLI) in healthy controls and patients with disorders of consciousness aimed to find differences in connectivity of brain sources between these two states in different frequency bands. It was analyzed a total of 50 EEGs, 28 from healthy patients and 22 from patients with disorders of consciousness with two kind of montages, bipolar and mastoid referenced. The patients show a higher PLI in lower frequency bands with significative differences for interhemispheric distances between electrodes using a mastoid reference